139503560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{498227}}^1$

素因数の和:498245

約数の個数: 32

約数和(自身を含む): 358724160

約数和(自身を除く): 219220600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 498227, 996454, 1992908, 2491135, 3487589, 3985816, 4982270, 6975178, 9964540, 13950356, 17437945, 19929080, 27900712, 34875890, 69751780, 139503560]

約数ペア:

[(1, 139503560), (2, 69751780), (4, 34875890), (5, 27900712), (7, 19929080), (8, 17437945), (10, 13950356), (14, 9964540), (20, 6975178), (28, 4982270), (35, 3985816), (40, 3487589), (56, 2491135), (70, 1992908), (140, 996454), (280, 498227)]